ID   DEOD_HELP2              Reviewed;         233 AA.
AC   B6JN17;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-DEC-2008, sequence version 1.
DT   27-MAR-2024, entry version 71.
DE   RecName: Full=Purine nucleoside phosphorylase DeoD-type {ECO:0000255|HAMAP-Rule:MF_01627};
DE            Short=PNP {ECO:0000255|HAMAP-Rule:MF_01627};
DE            EC=2.4.2.1 {ECO:0000255|HAMAP-Rule:MF_01627};
GN   Name=deoD {ECO:0000255|HAMAP-Rule:MF_01627};
GN   OrderedLocusNames=HPP12_1143;
OS   Helicobacter pylori (strain P12).
OC   Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=570508;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=P12;
RA   Fischer W., Windhager L., Karnholz A., Zeiller M., Zimmer R., Haas R.;
RT   "The complete genome sequence of Helicobacter pylori strain P12.";
RL   Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the reversible phosphorolytic breakdown of the N-
CC       glycosidic bond in the beta-(deoxy)ribonucleoside molecules, with the
CC       formation of the corresponding free purine bases and pentose-1-
CC       phosphate. {ECO:0000255|HAMAP-Rule:MF_01627}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a purine D-ribonucleoside + phosphate = a purine nucleobase +
CC         alpha-D-ribose 1-phosphate; Xref=Rhea:RHEA:19805, ChEBI:CHEBI:26386,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720, ChEBI:CHEBI:142355; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01627};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a purine 2'-deoxy-D-ribonucleoside + phosphate = 2-deoxy-
CC         alpha-D-ribose 1-phosphate + a purine nucleobase;
CC         Xref=Rhea:RHEA:36431, ChEBI:CHEBI:26386, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:57259, ChEBI:CHEBI:142361; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01627};
CC   -!- SUBUNIT: Homohexamer; trimer of homodimers. {ECO:0000255|HAMAP-
CC       Rule:MF_01627}.
CC   -!- SIMILARITY: Belongs to the PNP/UDP phosphorylase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01627}.
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DR   EMBL; CP001217; ACJ08295.1; -; Genomic_DNA.
DR   RefSeq; WP_000187702.1; NC_011498.1.
DR   AlphaFoldDB; B6JN17; -.
DR   SMR; B6JN17; -.
DR   KEGG; hpp:HPP12_1143; -.
DR   HOGENOM; CLU_068457_2_0_7; -.
DR   Proteomes; UP000008198; Chromosome.
DR   GO; GO:0004731; F:purine-nucleoside phosphorylase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009164; P:nucleoside catabolic process; IEA:UniProt.
DR   CDD; cd09006; PNP_EcPNPI-like; 1.
DR   Gene3D; 3.40.50.1580; Nucleoside phosphorylase domain; 1.
DR   HAMAP; MF_01627; Pur_nucleosid_phosp; 1.
DR   InterPro; IPR004402; DeoD-type.
DR   InterPro; IPR018016; Nucleoside_phosphorylase_CS.
DR   InterPro; IPR000845; Nucleoside_phosphorylase_d.
DR   InterPro; IPR035994; Nucleoside_phosphorylase_sf.
DR   NCBIfam; TIGR00107; deoD; 1.
DR   PANTHER; PTHR43691:SF11; FI09636P-RELATED; 1.
DR   PANTHER; PTHR43691; URIDINE PHOSPHORYLASE; 1.
DR   Pfam; PF01048; PNP_UDP_1; 1.
DR   SUPFAM; SSF53167; Purine and uridine phosphorylases; 1.
DR   PROSITE; PS01232; PNP_UDP_1; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           1..233
FT                   /note="Purine nucleoside phosphorylase DeoD-type"
FT                   /id="PRO_1000186200"
FT   ACT_SITE        204
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01627"
FT   BINDING         4
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         20
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         24
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         43
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         87..90
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         179..181
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         203..204
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   SITE            217
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01627"
SQ   SEQUENCE   233 AA;  25774 MW;  0D73778A44EBE94C CRC64;
     MTPHINAKIG DFYPQCLLCG DPLRVSYIAK KFLQDAKEIT NVRNMLGFSG KYKGKGISLM
     GHGMGIASCT IYVTELIKTY QVKELLRIGT CGAISPKVGL KDIIMATGAS TDSKTNRVRF
     LNHDLSATPD FELSLRAYQT AKRLGIDLKV GNVFSSDFFY SFETHAFDLM AQYNHLAIEM
     EAAGLYATAM ELNSKALCLC SVSDHLITKE ALSPKERVES FDNMIILALE MMS
//